package com.shiro.conifg.shiro;

import com.shiro.dao.SysUserDao;
import com.shiro.entity.SysPermissionEntity;
import com.shiro.entity.SysRoleEntity;
import com.shiro.entity.SysUserEntity;
import com.shiro.service.SysPermissionService;
import com.shiro.service.SysRoleService;
import com.shiro.service.SysUserService;
import org.apache.shiro.authc.AuthenticationException;
import org.apache.shiro.authc.AuthenticationInfo;
import org.apache.shiro.authc.AuthenticationToken;
import org.apache.shiro.authc.SimpleAuthenticationInfo;
import org.apache.shiro.authz.AuthorizationInfo;
import org.apache.shiro.authz.SimpleAuthorizationInfo;
import org.apache.shiro.realm.AuthorizingRealm;
import org.apache.shiro.subject.PrincipalCollection;
import org.springframework.stereotype.Component;

import javax.annotation.Resource;
import java.util.List;

//实现AuthorizingRealm接口用户用户认证
//@Component
public class ShiroRealm extends AuthorizingRealm {

    @Resource
    private SysUserService sysUserService;
    @Resource
    private SysRoleService sysRoleService;
    @Resource
    private SysPermissionService sysPermissionService;

    //角色权限和对应权限添加
    @Override
    protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principalCollection) {
        //获取登录用户名
        String name= (String) principalCollection.getPrimaryPrincipal();
        //查询用户名称
        SysUserEntity sysUserEntity =  sysUserService.queryObjectByName(name);

        SysRoleEntity sysRoleEntity =  sysRoleService.queryObject(sysUserEntity.getRoleId());

        List<SysPermissionEntity> queryList =  sysPermissionService.queryListByRoleId(sysRoleEntity.getId());
        //添加角色和权限
        SimpleAuthorizationInfo simpleAuthorizationInfo = new SimpleAuthorizationInfo();
//        for (Role role:user.getRoles()) {
//            //添加角色
            simpleAuthorizationInfo.addRole(sysRoleEntity.getRoleName());
            for (SysPermissionEntity permission:queryList) {
//                //添加权限
                simpleAuthorizationInfo.addStringPermission(permission.getPermissionCode());
            }
//        }
        return simpleAuthorizationInfo;
    }

    //用户认证
    @Override
    protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken authenticationToken) throws AuthenticationException {
        //加这一步的目的是在Post请求的时候会先进认证，然后在到请求
        if (authenticationToken.getPrincipal() == null) {
            return null;
        }
        //获取用户信息
        String name = authenticationToken.getPrincipal().toString();
         SysUserEntity sysUserEntity =  sysUserService.queryObjectByName(name);
        if (sysUserEntity == null) {
            //这里返回后会报出对应异常
            return null;
        } else {
            //这里验证authenticationToken和simpleAuthenticationInfo的信息
            SimpleAuthenticationInfo simpleAuthenticationInfo = new SimpleAuthenticationInfo(name, sysUserEntity.getPassword(), getName());
            return simpleAuthenticationInfo;
        }
    }
}